Interference source positioning method and device, electronic equipment and storage medium

Abstract

The invention discloses an interference source positioning method and device, electronic equipment and a storage medium, relates to the field of communication, is used for improving the accuracy of interference source positioning, and comprises the following steps: determining a main cell from an interference cell set; the base station floor noise of the main cell is greater than a first threshold value; the interference types of the interference cells in the interference cell set are the same; determining a plurality of cooperative positioning cells from the interference cell set according to the position relationship between each interference cell in the interference cell set and the main cell; and determining at least one to-be-selected interference source according to the position and the coverage range of the main cell, and determining the position of a target interference source according to the signal influence degree of each to-be-selected interference source on the plurality of cooperative positioning cells. The interference source positioning method and device are applied to the interference source positioning process.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to an interference source positioning method, device, electronic device and storage medium. Background Art

[0002] In the process of 800M and 900M network evolution, external uplink interference has always been an important issue in network deployment and optimization. In particular, some illegal repeaters installed by users themselves contain various devices with poor performance, which will cause serious interference to the network uplink.

[0003] In the related art, technicians identify the type of interference to the cell, cluster the locations of the identified cells with the same type of interference, calculate the path loss difference between the cells clustered to the same type center, and calculate the location of the interference source in combination with the propagation model. However, due to the large errors that may exist in the clustering process, the interference source cannot be accurately located. Therefore, how to improve the accuracy of interference source location is a technical problem that still needs to be solved. Summary of the invention

[0004] The present application provides an interference source positioning method, device, electronic device and storage medium, which can improve the accuracy of interference source positioning.

[0005] In a first aspect, the present application provides an interference source positioning method, including: an interference source positioning device determines a main cell from an interference cell set; the base station background noise of the main cell is greater than a first threshold; the interference types of the interference cells in the interference cell set are the same; the interference source positioning device determines multiple co-positioning cells from the interference cell set based on the position relationship between each interference cell in the interference cell set and the main cell; the interference source positioning device determines at least one candidate interference source based on the position and coverage of the main cell, and determines the position of the target interference source based on the degree of influence of each candidate interference source on the signals of the multiple co-positioning cells.

[0006] In a possible implementation, the distance between each interfering cell in the interfering cell set and the main cell is determined; based on the positional relationship between each interfering cell and the main cell, a first interfering cell is determined from the interfering cell set; the distance between the first interfering cell and the main cell is less than a second threshold; the second interfering cell is determined based on the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the first interfering cell; the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the second interfering cell is less than a third threshold; the antenna normal is used to indicate the direction perpendicular to the surface of the access network device to which the cell belongs; and based on the second interfering cell, multiple co-located cells are determined.

[0007] In one possible implementation, the location of the access network device to which the first interfering cell belongs, the location of the access network device to which the main cell belongs, and the azimuth of the main cell are obtained; the direction from the main cell to the first interfering cell is determined according to the location of the access network device to which the second interfering cell belongs and the location of the access network device to which the main cell belongs; the antenna normal of the main cell is determined based on the azimuth of the main cell; and the angle between the antenna normal of the main cell and the direction from the main cell to the first interfering cell is determined based on the direction from the main cell to the first interfering cell and the antenna normal of the main cell.

[0008] In a possible implementation manner, a plurality of co-located cells are determined according to the second interfering cell and the third interfering cell; the third interfering cell and the second interfering cell are co-located cells.

[0009] In a possible implementation, the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, the position of the access network device to which the third interfering cell belongs, and the azimuth of the third interfering cell are obtained; based on the position of the access network device to which the second interfering cell belongs, the position of the access network device to which the primary cell belongs, and the azimuth of the primary cell, a first angle value is determined; the first angle value is the angle value between the antenna normal of the primary cell and the direction from the primary cell to the second interfering cell; based on the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, and the position of the access network device to which the primary cell belongs, a second angle value is determined; the second angle value is the angle value between the antenna normal of the second interfering cell and the direction from the second interfering cell to the primary cell; based on the access network device to which the third interfering cell belongs, the azimuth of the second interfering cell, and the position of the access network device to which the primary cell belongs The third angle value is determined based on the location of the device, the location of the access network device to which the main cell belongs, and the azimuth of the main cell; the third angle value is the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the three interference cells; the fourth angle value is determined based on the location of the access network device to which the third interference cell belongs, the azimuth of the third interference cell, and the location of the access network device to which the main cell belongs; the fourth angle value is the angle value between the antenna normal of the third interference cell and the direction of the third interference cell pointing to the main cell; if the sum of the first angle value and the second angle value is less than the sum of the third angle value and the fourth angle value, it is determined that the second interference cell is a plurality of co-located cells; if the sum of the third angle value and the fourth angle value is less than the sum of the first angle value and the second angle value, it is determined that the third interference cell is a plurality of co-located cells.

[0010] In a possible implementation, for each candidate interference source, the received signal strength index RSSI of the candidate interference source for each co-located cell is obtained; the RSSI of the candidate interference source for each co-located cell is used to indicate the degree of influence of the candidate interference source on the signals of multiple co-located cells; for each candidate interference source, the difference in RSSI between any two co-located cells among the multiple co-located cells is determined to obtain multiple difference values; according to the multiple difference values ​​corresponding to each candidate interference source, the target interference source is determined; and the sum of the multiple difference values ​​corresponding to the target interference source is the smallest.

[0011] In a second aspect, the present application provides an interference source locating device, including: a processing unit, used to determine a main cell from an interference cell set; the base station background noise of the main cell is greater than a first threshold; the interference types of the interference cells in the interference cell set are the same; the processing unit is also used to determine multiple co-located cells from the interference cell set based on the position relationship between each interference cell in the interference cell set and the main cell; the processing unit is also used to determine at least one candidate interference source based on the position and coverage of the main cell, and determine the position of the target interference source based on the degree of influence of each candidate interference source on the signals of the multiple co-located cells.

[0012] In one possible implementation, the processing unit is further used to determine the distance between each interfering cell in the interfering cell set and the main cell; the processing unit is further used to determine the first interfering cell from the interfering cell set based on the positional relationship between each interfering cell and the main cell; the distance between the first interfering cell and the main cell is less than a second threshold; the processing unit is further used to determine the second interfering cell based on the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the first interfering cell; the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the second interfering cell is less than a third threshold; the antenna normal is used to indicate the direction perpendicular to the surface of the access network device to which the cell belongs; the processing unit is further used to determine multiple co-located cells based on the second interfering cell.

[0013] In one possible implementation, the acquisition unit is used to acquire the position of the access network device to which the first interfering cell belongs, the position of the access network device to which the main cell belongs, and the azimuth of the main cell; the processing unit is also used to determine the direction of the main cell pointing to the first interfering cell based on the position of the access network device to which the second interfering cell belongs and the position of the access network device to which the main cell belongs; the processing unit is also used to determine the antenna normal of the main cell based on the azimuth of the main cell; the processing unit is also used to determine the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the first interfering cell based on the direction of the main cell pointing to the first interfering cell and the antenna normal of the main cell.

[0014] In a possible implementation manner, the processing unit is further configured to determine a plurality of co-located cells according to the second interfering cell and the third interfering cell; the third interfering cell and the second interfering cell are co-located cells.

[0015] In a possible implementation, the acquisition unit is further used to acquire the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, the position of the access network device to which the third interfering cell belongs, and the azimuth of the third interfering cell; the processing unit is further used to determine the first angle value based on the position of the access network device to which the second interfering cell belongs, the position of the access network device to which the main cell belongs, and the azimuth of the main cell; the first angle value is the angle value between the antenna normal of the main cell and the direction from the main cell to the second interfering cell; the processing unit is further used to determine the second angle value based on the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, and the position of the access network device to which the main cell belongs; the second angle value is the angle value between the antenna normal of the second interfering cell and the direction from the second interfering cell to the main cell; the processing unit is further used to determine the second angle value based on the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, and the position of the access network device to which the main cell belongs The processing unit is further used to determine the fourth angle value based on the position of the access network device to which the third interfering cell belongs, the azimuth of the third interfering cell, and the position of the access network device to which the main cell belongs; the fourth angle value is the angle value between the antenna normal of the third interfering cell and the direction of the third interfering cell pointing to the main cell; the processing unit is further used to determine the second interfering cell as multiple co-located cells if the sum of the first angle value and the second angle value is less than the sum of the third angle value and the fourth angle value; the processing unit is further used to determine the third interfering cell as multiple co-located cells if the sum of the third angle value and the fourth angle value is less than the sum of the first angle value and the second angle value.

[0016] In a possible implementation, for each candidate interference source, the acquisition unit is also used to obtain the received signal strength index RSSI of the candidate interference source for each co-located cell; the RSSI of the candidate interference source for each co-located cell is used to indicate the degree of influence of the candidate interference source on the signals of multiple co-located cells; the processing unit is also used to determine, for each candidate interference source, the difference in RSSI between any two co-located cells in the multiple co-located cells to obtain multiple difference values; the processing unit is also used to determine the target interference source according to the multiple difference values ​​corresponding to each candidate interference source; the sum of the multiple difference values ​​corresponding to the target interference source is the smallest.

[0017] In a third aspect, the present application provides a computer-readable storage medium storing one or more programs, wherein the one or more programs include instructions, which, when executed by an electronic device of the present application, enables the electronic device to perform the interference source locating method as described in the first aspect and any possible implementation of the first aspect.

[0018] In a fourth aspect, the present application provides an electronic device, comprising: a processor and a memory; wherein the memory is used to store one or more programs, and the one or more programs include computer execution instructions. When the electronic device is running, the processor executes the computer execution instructions stored in the memory to enable the electronic device to perform the interference source locating method described in the first aspect and any possible implementation method of the first aspect.

[0019] In a fifth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the electronic device of the present application to perform the interference source locating method as described in the first aspect and any possible implementation manner of the first aspect.

[0020] In a sixth aspect, the present application provides a chip system, which is applied to an interference source locating device; the chip system includes one or more interface circuits and one or more processors. The interface circuit and the processor are interconnected through a line; the interface circuit is used to receive a signal from a memory of the interference source locating device and send a signal to the processor, the signal including a computer instruction stored in the memory. When the processor executes the computer instruction, the interference source locating device executes the interference source locating method as in the first aspect and any possible design thereof.

[0021] In this application, the name of the interference source location device does not limit the device or functional unit itself. In actual implementation, these devices or functional units may appear with other names. As long as the functions of each device or functional unit are similar to those of this application, they are within the scope of the claims of this application and their equivalent technologies.

[0022] Based on the above technical solution, in this application, since the interference type of the interference signal generated by the same interference source is the same, the interference source positioning device can select the cell participating in the interference source positioning from the interference cell set with the same interference type. The closer the interference source is to the interference cell, the greater the degree of interference to the interference cell, and the interference source positioning device can use the cell with a greater degree of interference as the main cell. And the base station noise floor can reflect the degree of interference to the interference cell. In this way, the interference source positioning device can obtain the base station noise floor of the cell and take the cell with a base station noise floor greater than the first threshold as the main cell, so as to determine the cell (main cell) to which the interference source belongs. The degree of interference to the cell near the interference source depends on the positional relationship between the cell and the interference source. In this way, the interference source positioning device can determine the cell close to the main cell to participate in the positioning of the interference source based on the positional relationship between each interference cell in the interference cell set and the main cell.

[0023] Furthermore, the interference source positioning device can determine at least one candidate interference source according to the location and coverage of the primary cell, and determine the location of the target interference source according to the degree of influence of each candidate interference source on the signals of multiple co-located cells. Compared with the prior art, in which the interference source positioning device obtains the co-located cells by clustering method, the interference source positioning device of the present application can accurately determine multiple co-located cells according to the positional relationship between each interference cell in the interference cell set and the primary cell, thereby improving the accuracy of interference source positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the architecture of an interference source positioning system provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the structure of an interference source locating device provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of a flow chart of an interference source positioning method provided in an embodiment of the present application;

[0027] Figure 4 A schematic diagram of a flow chart of another interference source positioning method provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of a flow chart of another interference source positioning method provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of a flow chart of another interference source positioning method provided in an embodiment of the present application;

[0030] Figure 7 A schematic diagram of a flow chart of another interference source positioning method provided in an embodiment of the present application;

[0031] Figure 8 A schematic diagram of a flow chart of another interference source positioning method provided in an embodiment of the present application;

[0032] Fig. 9 A schematic diagram of modeling a positioning model provided in an embodiment of the present application;

[0033] Fig.10 A schematic diagram of the structure of another interference source locating device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] In this article, the character " / " generally indicates that the objects before and after are in an "or" relationship. For example, A / B can be understood as A or B.

[0036] The terms "first" and "second" in the specification and claims of this application are used to distinguish different objects rather than to describe a specific order of objects. For example, a first edge service node and a second edge service node are used to distinguish different edge service nodes rather than to describe a characteristic order of edge service nodes.

[0037] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0038] In addition, in the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplarily" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present concepts in a specific way.

[0039] In the process of 800M and 900M network evolution, external uplink interference has always been an important issue in network deployment and optimization. The negative effects caused by uplink interference include: increasing the system call drop rate, reducing the coverage of base stations, and reducing call quality, which seriously affects network indicators and user call experience.

[0040] The external interference of the system mainly includes stray interference, failure of fixed radio equipment, etc., especially illegal repeaters installed by some users. These repeaters are cheap, but the performance of the various components they contain is poor, which will cause strong uplink interference to the system.

[0041] At present, the method commonly used in the industry to locate uplink interference sources relies heavily on the experience and judgment of network optimizers, so it requires high professional level and work experience of network optimizers. On the other hand, although there are also positioning methods using network data, technicians identify the type of interference in the cell, cluster the locations of the cells with the same type of interference, calculate the path loss difference between the cells clustered to the same type of center, and calculate the location of the interference source in combination with the propagation model. However, due to the large errors that may exist in the clustering process, the interference source cannot be accurately located. Taking the urban scene as an example, the Egli propagation model is used as the distance model, which satisfies the following formula 1:

[0042] L=88+40lgd+20lgf-20lgh t h r -G Formula 1

[0043] Where L represents the path loss, d represents the distance between the transmitter and the receiver, f represents the frequency, and h represents the t Indicates the transmitter height, h r represents the receiver altitude and G represents the terrain correction factor.

[0044] In addition, the relationship between the interference source transmission power and the base station reception power satisfies the following formula 2:

[0045] RSSI=P–L Formula 2

[0046] Among them, RSSI represents the base station receiving power, and P represents the interference source transmitting power.

[0047] Then the power difference of the same interference source signal received by different base stations in two co-located cells satisfies the following formula 3:

[0048] RSSI0-RSSI i =L i -L0=40lgd i / d0+20lghr0 / hr i Formula 3

[0049] K i0 =d i / d0=10 (RSSI0-RSSIi-20lg hr0 / hri) / 40

[0050] Among them, RSSI0 represents the received power of the primary cell, RSSI i represents the received power of the ith cell, k io Represents the distance ratio between two cells. According to analytic geometry, when K io When is a fixed value, the function expression is a circle. When electromagnetic interference occurs, the interference point is on a circle with a certain distance ratio from the two cells, and the center of the circle is located on the straight line connecting the two cells. Select three cell points p0 = (x0, y0), p1 = (x1, y1), p2 = (x2, y2) in the interference monitoring queue, set P0 as the main cell, and the electromagnetic interference source is located at the position longitude and latitude p x =(x, y), the monitoring level of the cell changes according to the strength of the interference source signal, where (x, y) represents the longitude and latitude. The heights of the cell receiving antennas are h0, h1, and h2, respectively, so formula 4 can be obtained:

[0051]

[0052] Among them, d i0 represents the fixed distance between the ith cell and the main cell, σ i Indicates k i0 The square of. From formula 4, it can be obtained that the electromagnetic observation site and the electromagnetic interference point are on the equation of a standard circle. Therefore, when electromagnetic interference occurs, the main cell and other cells can locate the interference source on a circle of distance ratio. When the electromagnetic interference source is determined simultaneously using the selected three cells p0, p1, and p2, two circles C1 and C2 of distance ratio can be determined. The intersection of the two electromagnetic positioning circles is the location of the electromagnetic interference source, and the location coordinates are the longitude and latitude of the electromagnetic interference source.

[0053] It is not difficult to see that the above scheme selects the co-location cell by clustering when calculating the interference intensity difference, and does not determine in advance the main cell to which the interference source belongs. In addition, each cell in the clustered co-location cell is affected by the interference source differently, so the accuracy of the positioning result is poor.

[0054] In the present application, since the interference type of the interference signal generated by the same interference source is the same, the interference source positioning device can select the cell participating in the interference source positioning from the interference cell set with the same interference type. The closer the interference source is to the interference cell, the greater the degree of interference to the interference cell, and the interference source positioning device can use the cell with a greater degree of interference as the main cell. And the base station noise floor can reflect the degree of interference to the interference cell. In this way, the interference source positioning device can obtain the base station noise floor of the cell and take the cell with a base station noise floor greater than the first threshold as the main cell, so as to determine the cell (main cell) to which the interference source belongs. The degree of interference to the cell near the interference source depends on the positional relationship between the cell and the interference source. In this way, the interference source positioning device can determine the cell close to the main cell to participate in locating the interference source based on the positional relationship between each interference cell in the interference cell set and the main cell.

[0055] Furthermore, the interference source positioning device can determine at least one candidate interference source according to the location and coverage of the primary cell, and determine the location of the target interference source according to the degree of influence of each candidate interference source on the signals of multiple co-located cells. Compared with the prior art, in which the interference source positioning device obtains the co-located cells by clustering method, the interference source positioning device of the present application can accurately determine multiple co-located cells according to the positional relationship between each interference cell in the interference cell set and the primary cell, thereby improving the accuracy of interference source positioning.

[0056] For example, Figure 1 As shown, Figure 1 This is a schematic diagram of the architecture of an interference source positioning system provided in the present application. The interference source positioning system includes: an interference source positioning device 101, an interference source 102 and multiple cells 103.

[0057] The interference source 102 may be located within a range of a cell 103 among the multiple cells.

[0058] The interference source positioning device 101 can obtain information of each cell in the multiple cells 103, and determine the main cell and the co-located cell. Subsequently, the interference source positioning device 101 can determine at least one candidate interference source from the coverage range of the main cell, thereby determining the position of the interference source 102 according to the degree of influence of each candidate interference source on the signals of the multiple co-located cells.

[0059] Specifically, the interference source 102 may be an illegal repeater installed privately by a user, or other equipment that may cause interference.

[0060] The interference type of the co-located cell is the same as the interference type of the primary cell.

[0061] It should be noted that the number of selected co-location cells is multiple. Figure 1The number of co-located cells exemplarily shown in FIG. 3 is 3. Figure 1 This is only an exemplary framework diagram, and the number of co-located cells is not limited. Figure 1 The names of the various parts included in are not limited.

[0062] The interference source positioning device 101 in the present application can be a terminal device or a server, and we do not limit this. What needs to be explained in this application is that the terminal device is a device with wireless communication function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted. It can also be deployed on the water surface (such as ships, etc.). It can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). The terminal device is also called a mobile station (MS), a terminal (MT) and a terminal, etc., which is a device that provides voice and / or data connectivity to users. For example, the terminal includes a handheld device with a wireless connection function, a vehicle-mounted device, etc. At present, the terminal can be: a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), an in-vehicle device (such as a car, a bicycle, an electric car, an airplane, a ship, a train, a high-speed rail, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a smart home device (such as a refrigerator, a TV, an air conditioner, an electric meter, etc.), an intelligent robot, a workshop device, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, a flying device (such as an intelligent robot, a hot air balloon, a drone, an airplane), etc. In a possible application scenario of the present application, the terminal device is a terminal device that often works on the ground, such as an in-vehicle device. In this application, for the sake of convenience, chips deployed in the above-mentioned devices, such as system-on-a-chip (SOC), baseband chips, etc., or other chips with communication functions may also be referred to as terminal devices.

[0063] Optionally, the terminal device may be an embedded communication device or a user's handheld communication device, including a mobile phone, a tablet computer, etc.

[0064] As an example, in an embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not just hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0065] The embodiment of the present application provides an interference source positioning device, which is used to execute the interference source positioning system provided in the embodiment of the present application. Figure 2 This is a schematic diagram of the structure of an interference source positioning device provided in an embodiment of the present application. Figure 2 As shown, the interference source locating device 200 includes at least one processor 201, a communication line 202, and at least one communication interface 204, and may also include a memory 203. The processor 201, the memory 203 and the communication interface 204 may be connected via the communication line 202.

[0066] The processor 201 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as one or more digital signal processors (DSP), or one or more field programmable gate arrays (FPGA).

[0067] The communication link 202 may include a pathway for transmitting information between the above-mentioned components.

[0068] The communication interface 204 is used to communicate with other devices or communication networks, and can use any transceiver-like device, such as Ethernet, radio access network (RAN), WLAN, etc.

[0069] The memory 203 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to include or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0070] In one possible design, the memory 203 can exist independently of the processor 201, that is, the memory 203 can be a memory outside the processor 201. In this case, the memory 203 can be connected to the processor 201 through the communication line 202, and is used to store execution instructions or application code, and the processor 201 controls the execution to implement the interference source location method provided in the following embodiment of the present application. In another possible design, the memory 203 can also be integrated with the processor 201, that is, the memory 203 can be the internal memory of the processor 201, for example, the memory 203 is a high-speed cache, which can be used to temporarily store some data and instruction information.

[0071] As an implementation method, the processor 201 may include one or more CPUs, for example Figure 2 As another achievable method, the interference source locating device 200 may include multiple processors, such as Figure 2 As another implementation, the interference source positioning device 200 may further include an output device 205 and an input device 206.

[0072] Below, combined with the attached Figure 3 The interference source positioning method provided in the embodiment of the present application is described in detail. Figure 3 As shown, the interference source positioning method includes S301-S303.

[0073] S301. An interference source locating apparatus determines a primary cell from a set of interfering cells.

[0074] The base station noise floor of the primary cell is greater than a first threshold; and the interference types of the interfering cells in the interfering cell set are the same.

[0075] Optionally, the base station noise floor refers to the noise level received by the receiver at the base station receiving end when no useful signal is input. The interference cell set includes multiple cells that receive the same interference signal type.

[0076] In a possible implementation, the interference source locating device obtains the base station noise floor of each interfering cell in the interfering cell set through a spectrum analyzer, a noise tester, and a test terminal, and selects a cell in the interfering cell set whose base station noise floor is greater than a first threshold as a main cell.

[0077] Optionally, the base station noise floor parameter is used to characterize the interference situation of the base station corresponding to the co-located cell. Specifically, the base station noise floor parameter may include the average noise floor of the base station and the noise floor of each physical resource block (PRB). Among them, the average noise floor of the base station is used to evaluate the degree of interference to the cell, and the noise floor of each PRB is used to determine the interference type of the interference to the cell.

[0078] It can be understood that, since the interference type of the interference signal generated by the same interference source is the same, the interference source locating device can select the cell participating in the interference source locating from the set of interference cells with the same interference type. The closer the interference source is to the interference cell, the greater the degree of interference to the interference cell, and the interference source locating device can use the cell with a greater degree of interference as the main cell. And the base station noise floor can reflect the degree of interference to the interference cell. In this way, the interference source locating device can obtain the base station noise floor of the cell and use the cell with a base station noise floor greater than the first threshold as the main cell, so as to determine the cell (main cell) to which the interference source belongs. In this way, the interference source locating device can lock the location of the interference source, thereby improving the efficiency of determining the interference source.

[0079] S302: The interference source locating apparatus determines a plurality of co-located cells from the interference cell set according to a position relationship between each interference cell in the interference cell set and the primary cell.

[0080] Optionally, the position relationship of the primary cell includes a distance position relationship and an angle position relationship. The co-located cell is a cell that cooperates with the primary cell to locate the interference source.

[0081] In a possible implementation, the interference source locating device selects cells within the coverage of the primary cell from the interference cell set as multiple co-located cells according to the distance position relationship and the angular position relationship between each interference cell in the interference cell set.

[0082] It should be explained that the interference source locating device determines the cell within the coverage of the main cell as the co-located cell according to the position relationship between each interfering cell in the interfering cell set and the main cell.

[0083] It is understandable that, since the interference source is located in the primary cell, the cells covered by the primary cell can well receive the interference signal of the interference source. The interference source locating device uses the cells covered by the primary cell as the co-located cells, which can improve the accuracy of the co-located cells in determining the interference source.

[0084] S303: The interference source locating device determines at least one interference source to be selected according to the location and coverage of the primary cell, and determines the location of the target interference source according to the degree of influence of each interference source to the signals of the multiple co-located cells.

[0085] Optionally, the interference source refers to the messy radio waves that interfere with the reception of radio signals in the radio communication system, or refers to any media that can generate a certain amount of energy sufficient to affect the normal operation of the system and its surrounding circuits. The location of the primary cell can be the coordinates of the base station to which the primary cell belongs.

[0086] In a possible implementation, the interference source positioning device determines at least one candidate interference source according to the location and coverage of the primary cell and the positioning model, in the coverage area of ​​the primary cell in the positioning model according to preset rules. The interference source positioning device determines the location of the target interference source according to the difference in the degree of influence of each candidate interference source on the signals of multiple co-located cells.

[0087] Optionally, the positioning model includes a position where the coordinates of the base station to which the primary cell belongs are mapped in a three-dimensional coordinate system.

[0088] In a possible implementation, the interference source may be an illegal repeater installed privately by a user.

[0089] It can be understood that after the interference source locating device determines the main cell to which the interference source belongs and the co-located cell within the coverage range of the main cell from the interference cell set, it selects at least one candidate interference source from the coverage range of the main cell; and then, according to the degree of influence of each candidate interference source on the signals of multiple co-located cells, the position of the target interference source can be quickly and accurately determined.

[0090] The above scheme brings at least the following beneficial effects: In the present application, since the interference type of the interference signal generated by the same interference source is the same, the interference source positioning device can select the cell participating in the interference source positioning from the interference cell set with the same interference type. The closer the interference source is to the interference cell, the greater the degree of interference to the interference cell, and the interference source positioning device can use the cell with a greater degree of interference as the main cell. And the base station noise floor can reflect the degree of interference to the interference cell. In this way, the interference source positioning device can obtain the base station noise floor of the cell and take the cell with a base station noise floor greater than the first threshold as the main cell, so as to determine the cell (main cell) to which the interference source belongs. The degree of interference to the cell near the interference source depends on the positional relationship between the cell and the interference source. In this way, the interference source positioning device can determine the cell close to the main cell to participate in the positioning of the interference source based on the positional relationship between each interference cell in the interference cell set and the main cell.

[0091] Furthermore, the interference source positioning device can determine at least one candidate interference source according to the location and coverage of the primary cell, and determine the location of the target interference source according to the degree of influence of each candidate interference source on the signals of multiple co-located cells. Compared with the prior art, in which the interference source positioning device obtains the co-located cells by clustering method, the interference source positioning device of the present application can accurately determine multiple co-located cells according to the positional relationship between each interference cell in the interference cell set and the primary cell, thereby improving the accuracy of interference source positioning.

[0092] In one possible implementation, combining Figure 3 ,like Figure 4 As shown, in S302, the interference source locating device determines a plurality of co-located cells from the interference cell set according to the position relationship between each interference cell in the interference cell set and the primary cell, which can be specifically implemented through the following S401-S404.

[0093] S401. An interference source locating apparatus determines a distance between each interfering cell in an interfering cell set and a primary cell.

[0094] In a possible implementation, the interference source locating device determines the horizontal distance between each interfering cell in the interfering cell set and the primary cell according to the location of the access network device to which each interfering cell in the interfering cell set belongs and the location of the access network device to which the primary cell belongs.

[0095] Optionally, the location of the access network device includes the coordinates of the access network device, the coordinates of the access network device belonging to the primary cell are (p0, q0), and the coordinates of the access network device belonging to any interfering cell in the interfering cell set are (p1, q2).

[0096] The distance between the interfering cell and the primary cell satisfies the following formula:

[0097] d 01 =arccos(sinq0*sinq1+cosp0*cosq1*cos(p0-p1))*R Formula 5

[0098] Among them, d 01 is the distance between each interfering cell in the interfering cell set and the primary cell, and R is the radius of the earth.

[0099] S402: The interference source locating apparatus determines a first interfering cell from the interfering cell set according to the position relationship between each interfering cell and the primary cell.

[0100] The distance between the first interfering cell and the primary cell is less than a second threshold.

[0101] Exemplarily, the second threshold is 1000 meters.

[0102] S403: The interference source locating apparatus determines the second interfering cell according to the angle between the antenna normal of the primary cell and the direction from the primary cell to the first interfering cell.

[0103] Among them, the angle between the antenna normal of the primary cell and the direction of the primary cell pointing to the second interfering cell is less than the third threshold; the antenna normal is used to indicate the direction perpendicular to the surface of the access network device to which the cell belongs.

[0104] In a possible implementation, the interference source positioning device can determine the direction vector of the antenna normal of the primary cell according to the azimuth of the primary cell; and determine the direction vector of the direction from the primary cell to the first interference cell according to the difference between the coordinates of the access network device to which the primary cell belongs and the coordinates of the access network device to which the first interference cell belongs. In this way, the interference source positioning device selects a cell whose angle value is less than the third threshold as the second interference cell according to the angle value between the direction vector of the antenna normal of the primary cell and the direction vector of the direction from the primary cell to the first interference cell.

[0105] Exemplarily, the third threshold is 90 degrees.

[0106] It can be understood that the interference source locating device converts the directional relationship between cells into a vector relationship between cells, which can improve the efficiency of determining the angle between cells.

[0107] S404: The interference source locating device determines a plurality of co-location cells according to the second interference cell.

[0108] In a possible implementation manner, the interference source locating apparatus may determine the second interfering cell and cells associated with the second cell as a plurality of co-located cells.

[0109] It should be explained that the interference source locating device determines the second interfering cell within the coverage of the primary cell according to the distance between the interfering cell in the interfering cell set and the primary cell and the angle between the pointing directions.

[0110] It can be understood that the interference source positioning device locks the best coverage area of ​​the main cell through the distance relationship and angle relationship between the coordinated cell and the main cell, and then selects multiple coordinated positioning cells from the best coverage area of ​​the main cell. In this way, it can be ensured that the multiple coordinated positioning cells are in the best coverage area of ​​the main cell, so that the interference degree of the multiple coordinated positioning cells by the interference source is similar, which can improve the accuracy of determining the interference source.

[0111] The above scheme brings at least the following beneficial effects: In the embodiment of the present application, since the cells within the coverage of the interference source can participate in the positioning of the interference source, and the interference source is located in the main cell, the cells within the coverage of the main cell can participate in the positioning of the interference source. The interference source positioning device can select a second interference cell that is close to the main cell and has a small angle between the antenna normal of the main cell and the direction of the main cell pointing to the first interference cell, which is a plurality of co-positioning cells, thereby improving the accuracy of the selection of the co-positioning cells.

[0112] In one possible implementation, combining Figure 4 ,like Figure 5 As shown, in the S403, the interference source positioning device determines the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the first interference cell before determining the second interference cell. The process of the interference source positioning device determining the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the first interference cell can be specifically implemented through the following S501-S504.

[0113] S501. An interference source positioning apparatus obtains a location of an access network device to which a first interfering cell belongs, a location of an access network device to which a primary cell belongs, and an azimuth of the primary cell.

[0114] Optionally, the azimuth of the cell refers to the angle that a plane in the due north direction rotates clockwise to coincide with the plane where the base station antenna is located.

[0115] In a possible implementation manner, the interference source locating device may obtain the azimuth of the primary cell according to the spectrum analyzer, the antenna tester and the working parameters of the primary cell.

[0116] In a possible implementation, the interference source positioning device can obtain the location of the access network device to which the first interfering cell belongs according to the coordinates of the base station to which the first interfering cell belongs; and obtain the location of the access network device to which the primary cell belongs according to the coordinates of the base station to which the primary cell belongs. Alternatively, the interference source positioning device can obtain the location of the access network device to which the first interfering cell belongs and the location of the access network device to which the primary cell belongs through the cell management platform.

[0117] S502: The interference source positioning apparatus determines the direction from the primary cell to the first interference cell according to the location of the access network device to which the second interference cell belongs and the location of the access network device to which the primary cell belongs.

[0118] In one possible implementation, the interference source locating device determines the direction vector of the direction from the main cell to the first interfering cell based on the coordinates of the base station to which the second interfering cell belongs and the coordinates of the base station to which the main cell belongs, and then determines the direction from the main cell to the first interfering cell based on the direction vector of the direction from the main cell to the first interfering cell.

[0119] It needs to be explained that the direction in which the primary cell points to the first interfering cell is used to characterize the positional relationship between the primary cell and the first interfering cell.

[0120] S503: The interference source locating device determines the antenna normal direction of the primary cell based on the azimuth of the primary cell.

[0121] In a possible implementation, the interference source locating device determines the direction vector of the antenna normal of the primary cell based on the azimuth of the primary cell, and determines the antenna normal of the primary cell based on the direction vector of the antenna normal of the primary cell.

[0122] Exemplarily, when the azimuth angle of the primary cell is ε0, the direction vector of the antenna normal of the primary cell is (sinε0, 0, cosε0).

[0123] S504: The interference source locating apparatus determines the angle value between the antenna normal direction of the primary cell and the direction of the primary cell pointing to the first interfering cell based on the direction of the primary cell pointing to the first interfering cell and the antenna normal direction of the primary cell.

[0124] In a possible implementation, the interference source positioning device can determine the first difference between the coordinates of the access network device to which the primary cell belongs and the coordinates of the access network device to which the first interfering cell belongs, and then determine the direction vector of the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell based on the direction vector of the antenna normal of the primary cell and the first difference. In this way, the interference source positioning device can determine the angle value between the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell based on the direction vector of the antenna normal of the primary cell and the direction vector of the direction of the primary cell pointing to the first interfering cell.

[0125] Exemplarily, when the direction vector of the antenna normal of the primary cell is (sinε0, 0, cosε0), the direction vector of the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell is (x1-x0, 0, z1-z0).

[0126] The angle between the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell satisfies the following formula:

[0127]

[0128] Among them, θ 01 The angle between the antenna normal of the primary cell and the direction from the primary cell to the first interfering cell.

[0129] It should be explained that the angle between the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell is used to represent the coverage degree of the primary cell to the first interfering cell.

[0130] It can be understood that the interference source positioning device can determine the direction vector of the antenna normal of the main cell according to the azimuth of the main cell; according to the positions of the main cell and the interference cell and the direction vector of the antenna normal of the main cell, the direction vector of the antenna normal of the main cell and the direction of the main cell pointing to the first interference cell can be determined. In this way, the interference source positioning device can quickly and accurately determine the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the first interference cell based on the above two vectors, thereby improving the efficiency of the interference source positioning device in determining the co-location cell.

[0131] The above scheme brings at least the following beneficial effects: In the embodiment of the present application, the interference source positioning device determines the direction vector of the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell based on the direction vector of the antenna normal of the primary cell. The interference source positioning device can accurately determine the angle value between the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell based on the direction vector of the antenna normal of the primary cell and the direction vector of the primary cell pointing to the first interfering cell.

[0132] In one possible implementation, combining Figure 5 ,like Figure 6 As shown, the process of the interference source locating device determining a plurality of co-located cells according to the second interfering cell in S404 can be specifically implemented through the following S601.

[0133] S601. The interference source locating apparatus determines a plurality of co-located cells according to a second interfering cell and a third interfering cell.

[0134] The third interference cell and the second interference cell are co-sited cells.

[0135] In a possible implementation manner, the interference source locating apparatus selects an interfering cell from the second interfering cell and the third interfering cell as a co-located cell.

[0136] It needs to be explained that all cells in the co-sited cell belong to the same base station.

[0137] It is understandable that, since the third interference cell and the second interference cell are co-sited cells, the two cells have the same network characteristics, and using the co-sited cells of the co-located cells as co-located cells can increase the number of co-located cells.

[0138] The above scheme brings at least the following beneficial effects: In the embodiment of the present application, the interference source positioning device determines multiple co-positioning cells according to the second interference cell and the third interference cell that is a co-sited cell with the second interference cell, thereby improving the accuracy of determining the co-positioning cells.

[0139] In one possible implementation, combining Figure 6 ,like Figure 7 As shown, the process of the interference source locating device in S601 determining a plurality of co-located cells according to the second interfering cell and the third interfering cell can be specifically implemented through the following S701-S707.

[0140] S701. An interference source locating apparatus obtains a position of an access network device to which a second interference cell belongs, an azimuth of the second interference cell, a position of an access network device to which a third interference cell belongs, and an azimuth of the third interference cell.

[0141] In a possible implementation, the interference source locating device obtains the location of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, the location of the access network device to which the third interfering cell belongs, and the azimuth of the third interfering cell through the cell management system.

[0142] It needs to be explained that the cell management system records the cell information of all cells within a preset range.

[0143] Optionally, the cell information includes at least one of the following: a cell name, a name of a base station to which the cell belongs, a location of a base station to which the cell belongs, and a type of interference signal to which the cell is subjected.

[0144] S702. The interference source locating device determines a first angle value based on the location of the access network device to which the second interfering cell belongs, the location of the access network device to which the primary cell belongs, and the azimuth of the primary cell.

[0145] The first angle value is the angle value between the antenna normal of the primary cell and the direction of the primary cell pointing to the second interfering cell.

[0146] Optionally, the interference source locating device may determine the first angle value based on the location of the access network device to which the second interfering cell belongs, the location of the access network device to which the primary cell belongs, and the azimuth of the primary cell, with reference to S501-S504.

[0147] It should be explained that the first angle value is used to characterize the coverage degree of the primary cell to the second interfering cell.

[0148] S703: The interference source positioning device determines a second angle value based on the location of the access network device to which the second interference cell belongs, the azimuth of the second interference cell, and the location of the access network device to which the primary cell belongs.

[0149] The second angle value is the angle value between the antenna normal of the second interfering cell and the direction of the second interfering cell pointing to the main cell.

[0150] In a possible implementation manner, the interference source locating device determines the second angle value based on the coordinates of the base station to which the second interfering cell belongs, the azimuth of the second interfering cell, and the coordinates of the base station to which the primary cell belongs.

[0151] Determine the second angle value to satisfy the following formula:

[0152]

[0153] Among them, θ 10 is the second angle value, and ε1 is the azimuth angle of the second interfering cell.

[0154] It needs to be explained that the second angle value is used to characterize the coverage degree of the second interfering cell to the second interfering cell.

[0155] S704. The interference source locating device determines a third angle value based on the location of the access network device to which the third interfering cell belongs, the location of the access network device to which the primary cell belongs, and the azimuth of the primary cell.

[0156] The third angle value is the angle value between the antenna normal of the primary cell and the direction of the primary cell pointing to the three interference cells.

[0157] Optionally, the process of the interference source locating apparatus determining the third angle value may refer to S702.

[0158] S705. The interference source locating device determines a fourth angle value based on the location of the access network device to which the third interference cell belongs, the azimuth of the third interference cell, and the location of the access network device to which the primary cell belongs.

[0159] The fourth angle value is the angle value between the antenna normal of the third interfering cell and the direction of the third interfering cell pointing to the main cell.

[0160] Optionally, the process of the interference source locating apparatus determining the fourth angle value may refer to S703.

[0161] S706: If the sum of the first angle value and the second angle value is less than the sum of the third angle value and the fourth angle value, the interference source locating apparatus determines that the second interfering cell is a plurality of co-located cells.

[0162] It needs to be explained that any two co-located cells among the multiple co-located cells belong to different access network devices.

[0163] S707: If the sum of the third angle value and the fourth angle value is less than the sum of the first angle value and the second angle value, the interference source locating apparatus determines that the third interfering cell is a plurality of co-located cells.

[0164] It should be explained that if the number of the multiple co-located cells is less than 3, the interference source locating device repeats S401-S404 to obtain more co-located cells. When the interference source locating device repeats S401-S404, the interference source locating device increases the second threshold and the third threshold.

[0165] It can be understood that if the sum of the first angle value and the second angle value is smaller, the main cell and the second interference cell cover each other more closely; the sum of the third angle value and the fourth angle value is smaller, the main cell and the third interference cell cover each other more closely. The closer the cells cover each other, the more similar the network characteristics between the two cells are, and the greater the success rate of their joint participation in locating the interference source. The interference source locating device selects the cells with closer mutual coverage from the co-station cells as the collaborative positioning cells, which can improve the accuracy of locating the interference source.

[0166] The above scheme brings at least the following beneficial effects: In the embodiment of the present application, when there is a co-sited cell among multiple co-located cells, a cell with a closer coverage with the main cell is selected from the co-sited cells as the co-located cell, thereby improving the accuracy of locating the interference source.

[0167] In one possible implementation, combining Figure 3 ,like Figure 8 As shown, the interference source locating device in S303 determines at least one candidate interference source according to the location and coverage of the primary cell, and determines the location of the target interference source according to the degree of influence of each candidate interference source on the signals of multiple co-located cells. The process can be specifically implemented through the following S801-S803.

[0168] S801. The interference source locating apparatus obtains, for each candidate interference source, a received signal strength index RSSI of the candidate interference source for each co-located cell.

[0169] The received signal strength indication (RSSI) of each co-located cell from the candidate interference source is used to indicate the degree of influence of the candidate interference source on the signals of the multiple co-located cells.

[0170] In a possible implementation, the interference source locating device measures the signal strength within the cell coverage range through a device such as a signal strength meter, a spectrum analyzer or a wireless test kit, and then obtains the RSSI of the candidate interference source for each co-located cell.

[0171] In another possible implementation, the interference source locating device may also obtain the RSSI of the candidate interference source for each co-located cell through a base station management system or a smart phone application.

[0172] In another possible implementation, before the interference source locating device obtains the received signal strength index RSSI of the selected interference source for each co-located cell for each candidate interference source, the interference source locating device projects the base stations corresponding to multiple co-located cells into a three-dimensional space coordinate system to determine the positioning model; and determines at least one candidate interference source based on the positioning model, the location and coverage of the main cell.

[0173] Optionally, in order to take into account the directivity of antenna gain, the interference source locating device only considers the coordinates of the base station in the horizontal direction. Therefore, the interference source locating device projects the base station into the ZOX plane of the three-dimensional space coordinate system.

[0174] For example, Fig. 9 As shown, after the interference source positioning device projects the base station corresponding to at least one co-positioning cell onto the ZOX plane of the three-dimensional space coordinate system, a schematic diagram of the positioning model is shown. Fig. 9 In the diagram, the positive direction of the X axis represents the east direction, and the positive direction of the Z axis represents the north direction.

[0175] Exemplarily, the angle range ang is 60° around the azimuth ε0, then the traversed angle ang is [ε0-60, ε0-30, ε0, ε0+30, ε0+60]; the distance range L is 800 meters from cell 0, then the traversed distance L is [100, 200, 300, 400, 500, 600, 700, 800]. Then the coordinates of the selected interference source are (x, y, z) satisfying x=x0-L*sin(ang); y=y0; z=z0+L*cos(ang); wherein the coordinates of the primary cell are (x0, y0, z0).

[0176] S802: The interference source locating apparatus determines, for each interference source to be selected, a difference in RSSI between any two co-located cells among a plurality of co-located cells to obtain a plurality of differences.

[0177] In a possible implementation, the interference source locating device determines the RSSI of each co-located cell among multiple co-located cells through the Egli propagation model for each selected interference source, and determines the RSSI difference between any two co-located cells among the multiple co-located cells based on the RSSI of each co-located cell to obtain multiple differences.

[0178] Optionally, the spatial propagation model adopts an Egli propagation model, which satisfies the following formula 8:

[0179] L = 88 + 40lg d + 20lg f - 20lg h t h r Formula 8

[0180] Where d is the propagation distance in kilometers; f is the frequency in megahertz; h is the frequency in megahertz; t Indicates the height of the transmitting antenna in meters; h r represents the height of the receiving antenna in meters, which is the base station antenna in this embodiment; K represents the terrain correction factor.

[0181] It needs to be explained that the interference source locating device determines the propagation distance according to the coordinates of the interference source and the coordinates of the co-located cell.

[0182] The following formula should be satisfied to determine the propagation distance:

[0183]

[0184] The coordinates of the interference source are (x, y, z), and the coordinates of the co-located cell are (x i ,y i , z i ), d represents the propagation distance.

[0185] Optionally, when the interference source is a repeater and three co-location cells are selected, the transmit power of the repeater is set to P in dBm, and the path losses of the co-location cells are:

[0186]

[0187] The numbers of the co-located cells are 0, 1, and 2, respectively; L represents the path loss; P represents the transmission power of the repeater; and RSSI represents the average noise floor value of the base station corresponding to the cell.

[0188] Optionally, the path loss difference of any two cells in the co-located cell is taken and substituted into the propagation model. In theory, the precise coordinates of the interference source should satisfy the following formula:

[0189] RSSI1-RSSI0=40lg d0 / d1+20lg h r1 / h r0 Formula 11

[0190] RSSI2-RSSI0=40lg d0 / d2+20lgh r2 / h r0 Formula 12

[0191] Furthermore, the calculation of the RSSI difference between any two co-located cells satisfies the following formula:

[0192] △1=RSSI1-RSSI0-40lg d0 / d1-20lg h r1 / h r0 Formula 13

[0193] △2=RSSI2-RSSI0-40lg d0 / d2-20lgh r2 / h r0 Formula 14 Wherein, △1 ​​and △2 represent the difference in RSSI between any two co-located cells.

[0194] S803: The interference source locating device determines the target interference source according to the multiple differences corresponding to each candidate interference source.

[0195] Among them, the sum of multiple differences corresponding to the target interference source is the smallest.

[0196] The calculation of multiple differences corresponding to the selected interference sources satisfies the following formula:

[0197] S=|△1|+|△2|+…|△n| Formula 15

[0198] Wherein, S is a plurality of difference values ​​corresponding to the interference sources to be selected.

[0199] Optionally, after updating for a preset number of times, the interference source locating device determines the coordinates corresponding to the minimum of the multiple differences corresponding to the candidate interference source as the final coordinates of the interference source.

[0200] It is understandable that the final coordinates of the interference source can be three-dimensional coordinates or longitude and latitude coordinates. When the final coordinates are required to be longitude and latitude coordinates, the interference source positioning device also needs to convert the coordinates corresponding to the minimum difference values ​​of the candidate interference source into longitude and latitude coordinates.

[0201] The calculation for conversion to longitude and latitude coordinates satisfies the following formula:

[0202] JD = (arctan (y / x) + pi) * 180 / pi; Formula 16

[0203] WD = arcsin (z / R) * 180 / pi; Formula 17

[0204] Where R is the radius and the location coordinates of the target interference source are (JD, WD).

[0205] The above scheme brings at least the following beneficial effects: In the embodiment of the present application, the interference source positioning device determines at least one interference source to be selected from the coverage range of the main cell, and then, for each interference source to be selected, determines the difference in RSSI between any two co-located cells in the multiple co-located cells to obtain multiple differences. Since the co-located cells are all within the coverage range of the main cell, the degree of interference from the interference source to each co-located cell is relatively the same. In this way, the smaller the corresponding difference of the interference source to be selected, the more stable the RSSI measured by each co-located cell, that is, the closer the position of the interference source to the real interference source, the more accurate the determination of the position of the target interference source can be.

[0206] The embodiment of the present application can divide the interference source positioning device into functional modules or functional units according to the above method example. For example, each functional module or functional unit can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules or functional units. Among them, the division of modules or units in the embodiment of the present application is schematic, which is only a logical function division. There may be other division methods in actual implementation.

[0207] For example, Fig.10 FIG. 1 is a possible schematic diagram of the structure of an interference source positioning device according to an embodiment of the present application. The interference source positioning device 100 includes: a processing unit 1001 and an acquisition unit 1002 .

[0208] The processing unit 1001 is used to determine a main cell from an interference cell set; the base station noise floor of the main cell is greater than a first threshold; the interference types of the interference cells in the interference cell set are the same; the processing unit 1001 is also used to determine multiple co-located cells from the interference cell set based on the position relationship between each interference cell in the interference cell set and the main cell; the processing unit 1001 is also used to determine at least one candidate interference source based on the position and coverage of the main cell, and determine the position of the target interference source based on the degree of influence of each candidate interference source on the signals of the multiple co-located cells.

[0209] In one possible implementation, the processing unit 1001 is also used to determine the distance between each interfering cell in the interfering cell set and the main cell; the processing unit 1001 is also used to determine the first interfering cell from the interfering cell set based on the positional relationship between each interfering cell and the main cell; the distance between the first interfering cell and the main cell is less than the second threshold; the processing unit 1001 is also used to determine the second interfering cell based on the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the first interfering cell; the angle value between the antenna normal of the main cell and the direction of the main cell pointing to the second interfering cell is less than the third threshold; the antenna normal is used to indicate the direction perpendicular to the surface of the access network device to which the cell belongs; the processing unit 1001 is also used to determine multiple co-located cells based on the second interfering cell.

[0210] In one possible implementation, the acquisition unit 1002 is used to obtain the position of the access network device to which the first interfering cell belongs, the position of the access network device to which the main cell belongs, and the azimuth of the main cell; the processing unit 1001 is also used to determine the direction in which the main cell points to the first interfering cell based on the position of the access network device to which the second interfering cell belongs and the position of the access network device to which the main cell belongs; the processing unit 1001 is also used to determine the antenna normal of the main cell based on the azimuth of the main cell; the processing unit 1001 is also used to determine the angle value between the antenna normal of the main cell and the direction in which the main cell points to the first interfering cell based on the direction in which the main cell points to the first interfering cell and the antenna normal of the main cell.

[0211] In a possible implementation, the processing unit 1001 is further configured to determine a plurality of co-located cells according to the second interfering cell and the third interfering cell; the third interfering cell and the second interfering cell are co-located cells.

[0212] In a possible implementation, the acquisition unit 1002 is further used to acquire the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, the position of the access network device to which the third interfering cell belongs, and the azimuth of the third interfering cell; the processing unit 1001 is further used to determine the first angle value based on the position of the access network device to which the second interfering cell belongs, the position of the access network device to which the primary cell belongs, and the azimuth of the primary cell; the first angle value is the angle value between the antenna normal of the primary cell and the direction from the primary cell to the second interfering cell; the processing unit 1001 is further used to determine the second angle value based on the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, and the position of the access network device to which the primary cell belongs; the second angle value is the angle value between the antenna normal of the second interfering cell and the direction from the second interfering cell to the primary cell; the processing unit 1001 is further used to determine the second angle value based on the position of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, and the position of the access network device to which the primary cell belongs; the second angle value is the angle value between the antenna normal of the second interfering cell and the direction from the second interfering cell to the primary cell; The processing unit 1001 is further used to determine the fourth angle value based on the position of the access network device to which the third interfering cell belongs, the azimuth of the third interfering cell, and the position of the access network device to which the main cell belongs; the fourth angle value is the angle value between the antenna normal of the third interfering cell and the direction of the third interfering cell pointing to the main cell; the processing unit 1001 is further used to determine the second interfering cell as multiple co-located cells if the sum of the first angle value and the second angle value is less than the sum of the third angle value and the fourth angle value; the processing unit 1001 is further used to determine the third interfering cell as multiple co-located cells if the sum of the third angle value and the fourth angle value is less than the sum of the first angle value and the second angle value.

[0213] In a possible implementation, for each interference source to be selected, the acquisition unit 1002 is also used to obtain the received signal strength index RSSI of the interference source to be selected for each co-located cell; the RSSI of the interference source to be selected for each co-located cell is used to indicate the degree of influence of the interference source to be selected on the signals of multiple co-located cells; the processing unit 1001 is also used to determine, for each interference source to be selected, the difference in RSSI between any two co-located cells in the multiple co-located cells to obtain multiple differences; the processing unit 1001 is also used to determine the target interference source according to the multiple differences corresponding to each interference source to be selected; the sum of the multiple differences corresponding to the target interference source is the smallest.

[0214] An embodiment of the present application also provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run a computer program or instruction to implement the interference source locating method in the above method embodiment.

[0215] An embodiment of the present application provides a computer program product including instructions. When the instructions are executed on a computer, the computer is enabled to execute the industrial terminal switching method in the above method embodiment.

[0216] Among them, the computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, and a hard disk. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM), registers, hard disks, optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any other form of computer-readable storage medium in a suitable combination of the above, or numerical values ​​in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an Application Specific Integrated Circuit (ASIC). In embodiments of the present invention, computer-readable storage media may be any tangible media that contains or stores a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0217] Since the apparatus, device, computer-readable storage medium, and computer program product in the embodiments of the present invention can be applied to the above-mentioned method, the technical effects that can be obtained can also refer to the above-mentioned method embodiments, and the embodiments of the present application will not be repeated here.

[0218] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for locating an interference source, characterized in that: The method comprises: Determine a primary cell from the interference cell set; the base station noise floor of the primary cell is greater than a first threshold; the interference types of the interference cells in the interference cell set are the same; Determine a plurality of co-located cells from the interfering cell set according to a position relationship between each interfering cell in the interfering cell set and the primary cell; At least one interference source to be selected is determined according to the position and coverage of the primary cell, and the position of the target interference source is determined according to the degree of influence of each interference source to the signals of the multiple co-located cells.

2. The method according to claim 1, characterized in that The determining a plurality of co-located cells from the interfering cell set according to a position relationship between each interfering cell in the interfering cell set and the primary cell comprises: Determine a distance between each interfering cell in the interfering cell set and the primary cell; Determine a first interfering cell from the set of interfering cells according to the positional relationship between each interfering cell and the primary cell; the distance between the first interfering cell and the primary cell is less than a second threshold; Determine the second interfering cell according to the angle value between the antenna normal of the primary cell and the direction of the primary cell pointing to the first interfering cell; the angle value between the antenna normal of the primary cell and the direction of the primary cell pointing to the second interfering cell is less than a third threshold; the antenna normal is used to indicate the direction perpendicular to the surface of the access network device to which the cell belongs; The multiple co-located cells are determined according to the second interfering cell.

3. The method according to claim 2, characterized in that Before determining the second interfering cell according to the angle value between the antenna normal of the primary cell and the direction in which the primary cell points to the first interfering cell, the method further includes: Acquire the location of the access network device to which the first interfering cell belongs, the location of the access network device to which the primary cell belongs, and the azimuth of the primary cell; Determine, according to the location of the access network device to which the second interfering cell belongs and the location of the access network device to which the primary cell belongs, the direction in which the primary cell points to the first interfering cell; Determining an antenna normal direction of the primary cell based on the azimuth of the primary cell; Based on the direction from the primary cell to the first interfering cell and the antenna normal of the primary cell, an angle value between the antenna normal of the primary cell and the direction from the primary cell to the first interfering cell is determined.

4. The method according to claim 2, characterized in that: The determining, according to the second interfering cell, the plurality of co-located cells comprises: The multiple co-located cells are determined according to the second interfering cell and the third interfering cell; the third interfering cell and the second interfering cell are co-located cells.

5. The method according to claim 4, characterized in that The determining, according to the second interfering cell and the third interfering cell, the plurality of co-located cells comprises: Obtaining the location of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, the location of the access network device to which the third interfering cell belongs, and the azimuth of the third interfering cell; Determine a first angle value based on the location of the access network device to which the second interfering cell belongs, the location of the access network device to which the primary cell belongs, and the azimuth of the primary cell; the first angle value is the angle value between the antenna normal of the primary cell and the direction in which the primary cell points to the second interfering cell; Determine a second angle value based on the location of the access network device to which the second interfering cell belongs, the azimuth of the second interfering cell, and the location of the access network device to which the primary cell belongs; the second angle value is the angle value between the antenna normal of the second interfering cell and the direction of the second interfering cell pointing to the primary cell; Determine a third angle value based on the location of the access network device to which the third interfering cell belongs, the location of the access network device to which the primary cell belongs, and the azimuth of the primary cell; the third angle value is the angle value between the antenna normal of the primary cell and the direction in which the primary cell points to the three interfering cells; Determine a fourth angle value based on the location of the access network device to which the third interfering cell belongs, the azimuth of the third interfering cell, and the location of the access network device to which the primary cell belongs; the fourth angle value is the angle value between the antenna normal of the third interfering cell and the direction in which the third interfering cell points to the primary cell; If the sum of the first angle value and the second angle value is less than the sum of the third angle value and the fourth angle value, determining that the second interfering cell is one of the multiple co-located cells; If the sum of the third angle value and the fourth angle value is less than the sum of the first angle value and the second angle value, it is determined that the third interfering cell is one of the multiple co-located cells.

6. The method according to any one of claims 1 to 5, characterized in that: Before determining the position of the target interference source according to the degree of influence of each candidate interference source on the signals of the multiple co-located cells, the method further includes: For each candidate interference source, obtain the received signal strength index RSSI of the candidate interference source for each co-located cell; the RSSI of the candidate interference source for each co-located cell is used to indicate the degree of influence of the candidate interference source on the signals of the multiple co-located cells; The determining the position of the target interference source according to the degree of influence of each candidate interference source on the signals of the multiple co-located cells includes: For each interference source to be selected, determine the difference in RSSI between any two co-located cells in the multiple co-located cells to obtain multiple differences; The target interference source is determined according to multiple difference values ​​corresponding to each candidate interference source; the sum of the multiple difference values ​​corresponding to the target interference source is the smallest.

7. An interference source locating device, characterized in that: The interference source locating device comprises: a processing unit; The processing unit is used to determine a primary cell from an interfering cell set; the base station noise floor of the primary cell is greater than a first threshold; the interference types of the interfering cells in the interfering cell set are the same; The processing unit is further configured to determine a plurality of co-located cells from the interfering cell set according to a position relationship between each interfering cell in the interfering cell set and the primary cell; The processing unit is further configured to determine at least one candidate interference source according to the location and coverage of the primary cell, and determine the location of the target interference source according to the degree of influence of each candidate interference source on the signals of the multiple co-located cells.

8. An interference source locating device, characterized in that: include: A processor and a memory; wherein the memory is used to store computer-executable instructions, and when the interference source locating device is running, the processor executes the computer-executable instructions stored in the memory, so that the interference source locating device executes the interference source locating method described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium comprises instructions, which, when executed by the interference source locating device, enable the computer to execute the interference source locating method according to any one of claims 1 to 6.

10. A computer program product, comprising computer instructions, characterized in that: When the computer instruction is executed by a processor, the interference source positioning method described in any one of claims 1 to 6 is implemented.

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